CN219950680U

CN219950680U - Be applied to wheeled MBR structure of sewage treatment

Info

Publication number: CN219950680U
Application number: CN202321501415.8U
Authority: CN
Inventors: 陶敏佳; 张昊; 赵英娜; 张静薇; 郑锦超; 赵羿帆; 李翠云; 左桂福
Original assignee: North China University of Science and Technology
Current assignee: North China University of Science and Technology
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-11-03
Anticipated expiration: 2033-06-13

Abstract

The utility model discloses a wheeled MBR structure applied to sewage treatment, which relates to the technical field of printing and dyeing sewage treatment and comprises an MBR tank, wherein a communicating pipe is arranged in the MBR tank, one end of the communicating pipe is communicated with the outside of the MBR tank and is provided with a drainage pump, a plurality of membranes are sequentially arranged on the communicating pipe in a limiting rotation mode along the length direction, the membranes are of a hollow structure and are communicated with the communicating pipe, a rotating mechanism is arranged on the membranes and is used for rotating the membranes, one sides of the plurality of membranes, which are far away from the drainage pump, are respectively provided with a backwashing mechanism, the backwashing mechanisms are used for cleaning the membranes, the bottom end in the MBR tank is provided with a sewage suction mechanism, the bottom end in the MBR tank is also provided with an oxygen supply mechanism, the oxygen supply mechanism is positioned on one side of the sewage suction mechanism, and the backwashing mechanism is positioned between the sewage suction mechanism and the communicating pipe; according to the utility model, through the arrangement of the rotating mechanism and the backwashing mechanism, the diaphragm can be cleaned effectively, and the service life of the diaphragm is prolonged.

Description

Be applied to wheeled MBR structure of sewage treatment

Technical Field

The utility model relates to the technical field of printing and dyeing sewage treatment, in particular to a wheel type MBR structure applied to sewage treatment.

Background

The treatment of the printing and dyeing sewage is always a difficult problem, and the printing and dyeing sewage has the characteristics of large water quantity, high organic pollutant content, large alkalinity, large water quality change and the like, and belongs to one of industrial wastewater which is difficult to treat; the dyeing wastewater contains dye, slurry, auxiliary agent, oiling agent, acid and alkali, fiber impurities, sand substances and inorganic salt, and is discharged into a wastewater treatment plant for further treatment after being pretreated by enterprises under normal conditions.

The domestic textile printing and dyeing enterprises mainly treat the printing and dyeing sewage by a biological treatment method and combine other physical and chemical methods to treat the printing and dyeing sewage by more than 80%, wherein an MBR device, namely a membrane bioreactor, is a key step in the whole treatment process, but has the problem of membrane pollution in the application process, and the membrane can be continuously exerted by cleaning according to the situation; in the traditional method, chemical agent treatment is commonly used, but secondary pollution and other derivative problems exist, and the cleaning effect gradually decreases along with the extension of the membrane age, so that the service life of the membrane component in the MBR is often not long; therefore, how to clean the MBR inner membrane module better can prolong the service life of the MBR inner membrane module, and the problem of urgent need to be treated is solved.

Disclosure of Invention

The utility model aims to provide a wheeled MBR structure applied to sewage treatment, so as to solve the problems in the prior art.

In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a wheeled MBR structure applied to sewage treatment, which comprises an MBR tank, wherein a communicating pipe is arranged in the MBR tank, one end of the communicating pipe is communicated with the outside of the MBR tank and is provided with a drainage pump, a plurality of diaphragms are sequentially arranged on the communicating pipe in a limiting rotation mode along the length direction, the diaphragms are of hollow structures and are communicated with the communicating pipe, a rotating mechanism is arranged on the diaphragms and is used for rotating the diaphragms, one sides, far away from the drainage pump, of the plurality of diaphragms are provided with backwashing mechanisms, the backwashing mechanisms are used for cleaning the diaphragms, a sewage suction mechanism is arranged at the inner bottom end of the MBR tank, an oxygen supply mechanism is further arranged at the inner bottom end of the MBR tank, and the oxygen supply mechanism is positioned at one side of the sewage suction mechanism, and the backwashing mechanisms are positioned between the sewage suction mechanism and the communicating pipe.

Preferably, the rotating mechanism comprises a plurality of connecting rings, the connecting rings are respectively arranged between two adjacent diaphragms, two ends of each connecting ring are respectively and fixedly connected with two adjacent diaphragms, the communicating pipe is positioned in the connecting rings, the circle centers of the communicating pipe are coincident with the circle centers of the connecting rings, a motor is fixedly arranged outside the MBR tank, and an output shaft of the motor is in transmission fit with any connecting ring.

Preferably, the backwash mechanism comprises a backwash tank, the backwash tank is fixedly arranged in the MBR tank, the backwash tank is positioned between the sewage suction mechanism and the communicating pipe, a plurality of backwash suction heads are sequentially and fixedly arranged in the backwash tank along the length direction, the water suction ends of the backwash suction heads are parallel to the side wall of the diaphragm and are provided with gaps, the water outlet ends of the backwash suction heads are communicated with backwash pipelines, backwash pumps are arranged on the backwash pipelines, and the water outlet ends of the backwash pipelines are positioned in the MBR tank.

Preferably, a scraping plate is fixedly arranged on the backwashing groove, and the tail end of the scraping plate is in sliding fit with the side wall of the diaphragm.

Preferably, the sewage suction mechanism comprises a sludge pipe, the sludge pipe is fixedly connected with the inner bottom of the MBR tank, the sludge pipe is of an annular structure, a plurality of sludge holes are formed in the sludge pipe along the circumferential direction, the sludge pipe is communicated with a sludge outlet pipe, the sludge outlet pipe is communicated with the outside of the MBR tank, and a sludge pump is arranged on the sludge outlet pipe.

Preferably, the oxygen supply mechanism comprises an air inlet pipe, the air inlet pipe is positioned on one side of the sludge pipe, the air inlet pipe is fixedly connected with the inner bottom end of the MBR tank, the tail end of the air inlet pipe is positioned above the MBR tank and extends out of the MBR tank, an air pump is arranged on the air inlet pipe outside the MBR tank, the air pump is fixedly arranged outside the MBR tank, and a plurality of air outlet holes are formed in the air inlet pipe at the inner bottom end of the MBR tank.

Preferably, a sealing layer is installed between the diaphragm and the communicating pipe, and the sealing layer is fixedly connected with the outer wall of the communicating pipe.

The utility model discloses the following technical effects: the utility model provides a wheeled MBR structure applied to sewage treatment, which is characterized in that by arranging a rotating mechanism and a backwashing mechanism, when dirt on a diaphragm is required to be cleaned, the rotating mechanism can drive the diaphragm to rotate, the backwashing mechanism can adsorb the dirt on the rotating diaphragm and adsorb the dirt off the diaphragm, so that the diaphragm can be cleaned effectively, and the service life of the diaphragm is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic illustration of a membrane and backwash tank of the present utility model;

FIG. 4 is a schematic view of a sludge pipe according to the present utility model;

FIG. 5 is a schematic view of an air intake pipe according to the present utility model;

wherein, 1, an MBR pool; 2. a membrane; 3. a communicating pipe; 4. a connecting ring; 5. an air pump; 6. a sludge pipe; 7. an air inlet pipe; 8. a backwash pump; 9. backwashing the pipeline; 10. a motor; 11. a chain; 12. a draining pump; 13. a backwash tank; 14. a sludge pump; 15. a scraper; 16. backwashing the suction head; 17. a sludge hole; 18. and an air outlet hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1-5, the utility model provides a wheeled MBR structure applied to sewage treatment, which comprises an MBR tank 1, wherein a communicating pipe 3 is installed in the MBR tank 1, one end of the communicating pipe 3 is communicated with the outside of the MBR tank 1 and is provided with a drainage pump 12, a plurality of membranes 2 are sequentially installed on the communicating pipe 3 in a limiting rotation manner along the length direction, the membranes 2 are hollow structures and are communicated with the communicating pipe 3, a rotating mechanism is installed on the membranes 2 and is used for rotating the membranes 2, one sides of the plurality of membranes 2 far away from the drainage pump 12 are respectively provided with a backwashing mechanism, the backwashing mechanism is used for cleaning the membranes 2, a sewage suction mechanism is installed at the inner bottom end of the MBR tank 1, an oxygen supply mechanism is also installed at the inner bottom end of the MBR tank 1, the oxygen supply mechanism is positioned at one side of the sewage suction mechanism, and the backwashing mechanism is positioned between the sewage suction mechanism and the communicating pipe 3.

In the utility model, the printing and dyeing sewage can be filtered through the arrangement of the membrane 2; through the arrangement of the communicating pipe 3 and the drainage pump 12, the communicating pipe 3 can collect the filtered printing and dyeing wastewater from the hollow structure in the membrane 2, and the drainage pump 12 pumps the filtered printing and dyeing wastewater from the MBR tank 1; through the arrangement of the rotating mechanism and the backwashing mechanism, when the dirt on the diaphragm 2 needs to be cleaned, the rotating mechanism can drive the diaphragm 2 to rotate, the backwashing mechanism can adsorb the dirt on the rotating diaphragm 2 and adsorb the diaphragm 2, and therefore the diaphragm 2 can be cleaned effectively; through the arrangement of the dirt absorbing mechanism, dirt in the MBR tank 1 can be absorbed, so that the dirt in the MBR tank 1 can be cleaned; meanwhile, the dirt absorbing mechanism can also clean dirt absorbed by the backwashing mechanism from the membrane 2, so that the dirt in the MBR tank 1 can be better cleaned; through the arrangement of the oxygen supply mechanism, oxygen can be provided for the aerobic microorganisms in the MBR tank 1, so that the aerobic microorganisms in the MBR tank 1 have activity all the time, and the printing and dyeing sewage can be better treated and degraded by the aerobic microorganisms.

Further, the slewing mechanism includes a plurality of go-between 4, a plurality of go-between 4 sets up respectively between two adjacent diaphragms 2, and go-between 4 both ends respectively with two adjacent diaphragms 2 fixed connection, communicating pipe 3 is located go-between 4, and communicating pipe 3's centre of a circle coincides with go-between 4's centre of a circle, MBR pond 1 external fixation has motor 10, fixed mounting has first sprocket on motor 10's the output shaft, fixed mounting has the second sprocket on any go-between 4, first sprocket, all mesh the both ends that have chain 11 on the second sprocket, motor 10 passes through first sprocket, second sprocket and chain 11 and the cooperation of arbitrary go-between 4 transmission.

Through the setting of motor 10, can drive first sprocket and rotate, the rotation of first sprocket can drive chain 11 and rotate, and the rotation of chain 11 can drive the second sprocket and rotate, and the rotation of second sprocket can drive go-between 4 and rotate, alright drive diaphragm 2 from this and rotate.

Further, backwash mechanism includes backwash tank 13, and backwash tank 13 fixed mounting is in MBR pond 1, and backwash tank 13 is located between sewage sucking mechanism and the communicating pipe 3, and along length direction fixed mounting in proper order there being a plurality of backwash suction head 16 in the backwash tank 13, the water sucking end of backwash suction head 16 is parallel with the lateral wall of diaphragm 2 and is provided with the clearance, and backwash suction head 16's play water end intercommunication has backwash pipeline 9, installs backwash pump 8 on the backwash pipeline 9, and backwash pipeline 9's play water end is located MBR pond 1.

Through the setting of backwash suction head 16 and backwash pump 8, the suction of backwash pump 8 can make backwash suction head 16 produce suction, and when motor 10 drove diaphragm 2 and rotated, backwash suction head 16 can be even adsorb the filth on the diaphragm 2, clears up diaphragm 2 from this.

Further, a scraper 15 is fixedly arranged on the backwashing tank 13, and the tail end of the scraper 15 is in sliding fit with the side wall of the diaphragm 2.

Through the arrangement of the scraping plate 15, when the motor 10 drives the diaphragm 2 to rotate, the scraping plate 15 can scrape the diaphragm 2, so that the cleaning effect of the diaphragm 2 is improved; the scraped dirt enters the backwashing tank 13 and is collected through the backwashing tank 13, and after the cleaning is finished, the dirt collected in the backwashing tank 13 can be cleaned in a concentrated manner; dirt that does not enter the backwash tank 13 enters the MBR tank 1 and is collected by the dirt suction mechanism.

Further, the dirt absorbing mechanism comprises a sludge pipe 6, the sludge pipe 6 is fixedly connected with the inner bottom end of the MBR tank 1, the sludge pipe 6 is of an annular structure, a plurality of sludge holes 17 are formed in the sludge pipe 6 along the circumferential direction, the sludge pipe 6 is communicated with a sludge outlet pipe, the sludge outlet pipe is communicated with the outside of the MBR tank 1, and a sludge pump 14 is arranged on the sludge outlet pipe.

Through the setting of mud pipe 6, sludge pump 14 and mud hole 17, the suction of sludge pump 14 can adsorb the interior filth of MBR pond 1 to in entering mud pipe 6 from the mud hole 17, the filth of inhaling in the mud pipe 6 can be through the suction of sludge pump 14, in entering out the mud pipe, the mud in the play mud pipe can be outside the MBR pond 1 because of the suction of sludge pump 14, from this completion is cleared up the filth in the MBR pond 1.

Further, oxygen suppliment mechanism includes intake pipe 7, and intake pipe 7 is located one side of mud pipe 6, and intake pipe 7 and MBR pond 1 inner bottom fixed connection, and intake pipe 7's end is located MBR pond 1 top and stretches out in the MBR pond 1, and installs air pump 5 on the intake pipe 7 that is located outside the MBR pond 1, and air pump 5 fixed mounting is outside the MBR pond 1, has offered a plurality of venthole 18 on the intake pipe 7 that is located the bottom in the MBR pond 1.

Through the arrangement of the air pump 5, the air inlet pipe 7 and the air outlet hole 18, the air pump 5 can pump air outside the MBR tank 1 into the air inlet pipe 7 and enter the MBR tank 1 from the air outlet hole 18, so that oxygen is supplied to aerobic microorganisms in the printing and dyeing sewage.

Further, a sealing layer is installed between the diaphragm 2 and the communicating pipe 3, and the sealing layer is fixedly connected with the outer wall of the communicating pipe 3.

Through the setting of sealing layer, can increase the leakproofness between diaphragm 2 and the communicating pipe 3, can avoid in the diaphragm 2 through filterable printing and dyeing sewage reveal the circumstances in the MBR pond 1, guaranteed the filter effect of printing and dyeing sewage, improved filtration efficiency.

The working process comprises the following steps: when in use, firstly, the printing and dyeing sewage to be treated is discharged into the MBR tank 1, and water addition is stopped when the water level reaches a set water level value; then, the air pump 5 is started, and bacterial and filler are added into the printing and dyeing sewage discharged into the MBR tank 1, the bacterial and filler can ferment and degrade the printing and dyeing sewage in the MBR tank 1, and the air outside the MBR tank 1 can enter the printing and dyeing sewage in the MBR tank 1 from the air outlet hole 18 through the air inlet pipe 7 by the suction force of the air pump 5, so that oxygen can be supplied to aerobic microorganisms added into the bacterial in the printing and dyeing sewage, and the effect of fermenting and degrading the printing and dyeing sewage is greatly improved; after fermentation and degradation for a period of time, starting a drainage pump 12 and a sludge pump 14, wherein the suction force of the drainage pump 12 can enable the printing and dyeing wastewater in the MBR tank 1 to pass through the membrane 2 and be absorbed into the hollow structure of the membrane 2, so that the printing and dyeing wastewater is filtered, and finally the wastewater in the hollow structure of the membrane 2 can be converged into the communicating pipe 3 under the suction force of the drainage pump 12 and discharged from the communicating pipe 3 to the MBR tank 1 for collection and subsequent treatment; the sludge pump 14 can suck the sewage entering the MBR tank 1, and the sewage is discharged out of the MBR tank 1 by the suction force of the sludge pump 14, so that the sewage in the MBR tank 1 is cleaned.

After a period of time, when the diaphragm 2 needs to be cleaned, the drainage pump 12 and the sludge pump 14 are closed, then the backwash pump 8 and the motor 10 are started, and the suction force of the backwash pump 8 is transmitted to the backwash suction head 16 through the backwash pipeline 9, so that the backwash suction head 16 generates suction force; the motor 10 drives the membrane 2 to rotate, so that the backwashing suction head 16 can uniformly adsorb the membrane 2 and re-discharge the adsorbed dirt into the MBR tank 1 through the backwashing pump 8; the scraping plate 15 scrapes the rotating diaphragm 2 and scrapes dirt on the diaphragm 2, so that the cleaning effect is improved; after cleaning, the backwash pump 8 and the motor 10 are closed, and the drainage pump 12 and the sludge pump 14 are restarted, so that the printing and dyeing sewage treatment operation can be continued; the sludge discharged into the MBR tank 1 by the backwashing pump 8 and the sludge scraped into the MBR tank 1 by the scraping plate 15 are pumped out of the MBR tank 1 by the sludge pump 14.

In the process of treating the printing and dyeing wastewater, the drainage pump 12 discharges the filtered printing and dyeing wastewater outside the MBR tank 1, and the sludge pump 14 discharges the wastewater outside the MBR tank 1 together with the printing and dyeing wastewater, so that the printing and dyeing wastewater in the MBR tank 1 is less and less, and when the liquid level of the printing and dyeing wastewater is lower than the set liquid level, the printing and dyeing wastewater is fed into the MBR tank 1 again, thereby continuing the treatment operation of the printing and dyeing wastewater.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. Be applied to wheeled MBR structure of sewage treatment, a serial communication port, including MBR pond (1), install communicating pipe (3) in MBR pond (1), the one end of communicating pipe (3) with MBR pond (1) external communication installs drain pump (12), spacing rotation in proper order along length direction on communicating pipe (3) installs a plurality of diaphragm (2), be hollow structure in diaphragm (2) and with communicating pipe (3) intercommunication, install slewing mechanism on diaphragm (2), slewing mechanism is used for rotating diaphragm (2), a plurality of diaphragm (2) are kept away from one side of drain pump (12) all is provided with backwash mechanism, backwash mechanism is used for the clearance diaphragm (2), dirty mechanism is installed to the bottom in MBR pond (1), oxygen supply mechanism is still installed to the bottom in MBR pond (1), oxygen supply mechanism is located dirty mechanism's of suction one side, backwash mechanism is located between dirty mechanism with communicating pipe (3).

2. The wheel type MBR structure applied to sewage treatment according to claim 1, wherein the rotating mechanism comprises a plurality of connecting rings (4), the connecting rings (4) are respectively arranged between two adjacent diaphragms (2), two ends of each connecting ring (4) are respectively fixedly connected with two adjacent diaphragms (2), the communicating pipe (3) is positioned in the connecting rings (4), the circle center of the communicating pipe (3) coincides with the circle center of the connecting rings (4), a motor (10) is fixedly installed outside the MBR tank (1), and an output shaft of the motor (10) is in transmission fit with any connecting ring (4).

3. The wheel type MBR structure applied to sewage treatment according to claim 1, wherein the backwashing mechanism comprises a backwashing tank (13), the backwashing tank (13) is fixedly installed in the MBR tank (1), the backwashing tank (13) is located between the sewage sucking mechanism and the communicating pipe (3), a plurality of backwashing suction heads (16) are sequentially and fixedly installed in the backwashing tank (13) along the length direction, the water sucking ends of the backwashing suction heads (16) are parallel to the side wall of the membrane (2) and are provided with gaps, the water outlet ends of the backwashing suction heads (16) are communicated with backwashing pipelines (9), backwashing pumps (8) are installed on the backwashing pipelines (9), and the water outlet ends of the backwashing pipelines (9) are located in the MBR tank (1).

4. A wheeled MBR structure for sewage treatment according to claim 3, wherein a scraper (15) is fixedly installed on the backwash tank (13), and the end of the scraper (15) is slidably engaged with the side wall of the membrane (2).

5. The wheel type MBR structure applied to sewage treatment according to claim 1, wherein the sewage suction mechanism comprises a sludge pipe (6), the sludge pipe (6) is fixedly connected with the inner bottom end of the MBR tank (1), the sludge pipe (6) is of an annular structure, a plurality of sludge holes (17) are formed in the sludge pipe (6) along the circumferential direction, the sludge pipe (6) is communicated with a sludge outlet pipe, the sludge outlet pipe is communicated with the outside of the MBR tank (1), and a sludge pump (14) is arranged on the sludge outlet pipe.

6. The wheeled MBR structure for sewage treatment according to claim 5, wherein the oxygen supply mechanism comprises an air inlet pipe (7), the air inlet pipe (7) is located on one side of the sludge pipe (6), the air inlet pipe (7) is fixedly connected with the inner bottom end of the MBR tank (1), the tail end of the air inlet pipe (7) is located above the MBR tank (1) and extends out of the MBR tank (1), an air pump (5) is installed on the air inlet pipe (7) which is located outside the MBR tank (1), the air pump (5) is fixedly installed outside the MBR tank (1), and a plurality of air outlet holes (18) are formed in the air inlet pipe (7) which is located at the inner bottom end of the MBR tank (1).

7. The wheel type MBR structure for sewage treatment according to claim 1, wherein a sealing layer is installed between the membrane (2) and the communicating pipe (3), and the sealing layer is fixedly connected with the outer wall of the communicating pipe (3).